error writing 4 unbuffered bytes - exiting

[Darryl Harvey]

I am running a fairly new box, Athlon 1.4Ghz, 512 Mb RAM, RedHat 7.3, rsync 
rsync  version 2.5.4  protocol version 26, it's disk layout is;

bash-2.05a# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/sda6             372M  338M   15M  96% /
/dev/sda1              45M  8.9M   34M  21% /boot
/dev/sda5             703M  218M  449M  33% /home
none                  251M     0  251M   0% /dev/shm
/dev/sda2             1.9G  1.7G  101M  95% /usr
/dev/sda7             251M  130M  107M  55% /var
/dev/hda1              19G  2.3G   16G  13% /usr/local/backup
/dev/hda2              17G  2.6G   14G  16% /opt/archive

I am trying to maintain a rsync'ed copy of the data from most of the 
filesystems onto /opt/archive.

(in fact the complete command I am using is);

rsync -vaW --exclude /opt/ --exclude /proc/ --exclude /dev/ --exclude /mnt/ 
--exclude /lost+found/ --exclude /tmp/ --delete -T /tmp / /opt/archive

Note this is the ONLY thing the /opt/archive filesystem is used for. I run 
rsync every three hours to make sure it is up to date..


Just recently I have been getting these errors;

rsync: error writing 4 unbuffered bytes - exiting: Broken pipe
rsync error: error in rsync protocol data stream (code 12) at io.c(464)
rsync: error writing 69 unbuffered bytes - exiting: Broken pipe
rsync error: error in rsync protocol data stream (code 12) at io.c(464

And the rsync fails.

I read in the archives and "Current Issues" Section of the web site that 
this is a known issue and it says that fatal error messages from the remote 
machine gets lost along the way.

This is running on the same..

As you can see, the destination disk has 14Gb free, so we are not running 
out of disk space, but it really does mainly occur on LARGE file sizes.

Testing the drive speeds, I do not see any problem either as /dev/hda2 is 
the FASTEST drive I have.

/dev/sda5:
  Timing buffered disk reads:  64 MB in 10.48 seconds =  6.11 MB/sec

/dev/hda1:
  Timing buffered disk reads:  64 MB in  3.31 seconds = 19.34 MB/sec

/dev/hda2:
  Timing buffered disk reads:  64 MB in  2.57 seconds = 24.90 MB/se


Any ideas ???

Thanks
Darryl